DE3787285T2 - Optischer Aufbau mit einer phasenstarr gekoppelten Laserdiodenzeile. - Google Patents

Optischer Aufbau mit einer phasenstarr gekoppelten Laserdiodenzeile.

Info

Publication number
DE3787285T2
DE3787285T2 DE87201996T DE3787285T DE3787285T2 DE 3787285 T2 DE3787285 T2 DE 3787285T2 DE 87201996 T DE87201996 T DE 87201996T DE 3787285 T DE3787285 T DE 3787285T DE 3787285 T2 DE3787285 T2 DE 3787285T2
Authority
DE
Germany
Prior art keywords
radiation
optical
prism
optical device
recording medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE87201996T
Other languages
German (de)
English (en)
Other versions
DE3787285D1 (de
Inventor
Ronald Reindert Drenten
Jan C O Int Octrooibu Opschoor
Kimio C O Int Octrooib Tatsuno
Der Poel Carolus Johannes Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Hitachi Ltd
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Philips Gloeilampenfabrieken NV filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3787285D1 publication Critical patent/DE3787285D1/de
Publication of DE3787285T2 publication Critical patent/DE3787285T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
    • G02B19/0057—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode in the form of a laser diode array, e.g. laser diode bar
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0972—Prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1395—Beam splitters or combiners
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1398—Means for shaping the cross-section of the beam, e.g. into circular or elliptical cross-section

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
DE87201996T 1987-10-19 1987-10-19 Optischer Aufbau mit einer phasenstarr gekoppelten Laserdiodenzeile. Expired - Fee Related DE3787285T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87201996A EP0312652B1 (en) 1987-10-19 1987-10-19 Optical device with phase-locked diodelaser array

Publications (2)

Publication Number Publication Date
DE3787285D1 DE3787285D1 (de) 1993-10-07
DE3787285T2 true DE3787285T2 (de) 1994-03-31

Family

ID=8197687

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87201996T Expired - Fee Related DE3787285T2 (de) 1987-10-19 1987-10-19 Optischer Aufbau mit einer phasenstarr gekoppelten Laserdiodenzeile.

Country Status (5)

Country Link
US (1) US4822151A (ja)
EP (1) EP0312652B1 (ja)
JP (1) JPH01271928A (ja)
KR (1) KR890007236A (ja)
DE (1) DE3787285T2 (ja)

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DE59510499D1 (de) * 1995-01-11 2003-01-16 Dilas Diodenlaser Gmbh Optische anordnung zur verwendung bei einer laserdiodenanordnung
US5533152A (en) * 1995-05-02 1996-07-02 Eastman Kodak Company Method and apparatus for coupling light emitted from a multi-mode laser diode array to a multi-mode optical fiber
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JPH11110808A (ja) * 1997-10-06 1999-04-23 Fujitsu Ltd 光学的情報記憶装置
JP3369101B2 (ja) * 1998-03-11 2003-01-20 富士写真フイルム株式会社 レーザ記録装置
EP1001297A1 (en) * 1998-11-10 2000-05-17 Datalogic S.P.A. Optical device and method for focusing a laser beam
US6529542B1 (en) * 2000-04-04 2003-03-04 Aculight Corporation Incoherent beam combined optical system utilizing a lens array
CA2365952A1 (en) 2000-12-15 2002-06-15 Takeshi Aikiyo Semiconductor laser device for use in a semiconductor laser module and optical amplifier
JP2002252420A (ja) * 2000-12-15 2002-09-06 Furukawa Electric Co Ltd:The 半導体レーザ素子、半導体レーザモジュールおよびその製造方法ならびに光ファイバ増幅器
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US20020159112A1 (en) * 2001-04-13 2002-10-31 Coppeta David A. Device and method for reducing polarization dependent loss in an optical monitor device
WO2003005509A1 (fr) 2001-07-02 2003-01-16 Furukawa Electric Co.,Ltd Module laser a semiconducteur, amplificateur de lumiere et procede de production de module laser a semiconducteur
JP2004006439A (ja) 2001-07-02 2004-01-08 Furukawa Electric Co Ltd:The 半導体レーザモジュール及びその製造方法
JPWO2003005507A1 (ja) * 2001-07-02 2004-10-28 古河電気工業株式会社 半導体レーザモジュール及びその製造方法、並びに光増幅器
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Also Published As

Publication number Publication date
JPH01271928A (ja) 1989-10-31
KR890007236A (ko) 1989-06-19
EP0312652A1 (en) 1989-04-26
US4822151A (en) 1989-04-18
EP0312652B1 (en) 1993-09-01
DE3787285D1 (de) 1993-10-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL HITACHI, L

8339 Ceased/non-payment of the annual fee